The core gameplay is really quite fun, but there are a couple details I think could be improved. Firstly, the lack of keyboard controls in the game end menu or shop is quite annoying. Also I'd appreciate some sort of tutorial, as it's not clear when the solid platform will sink, and I didn't realise I could loop around until my second attempt. Lastly, a minor detail I think could really improve the game, it would be cool if the falling blocks in the background matched what is upcoming, so the player can plan ahead of time.
Overall though I had a fun time, would love to see this updated further.